Bunuel wrote:
Two children, one from each grade, will be chosen at random from 4 children from the 5th grade class and 4 children from the 4th grade class to win a prize. Each class has 3 eligible girls and one eligible boy. What is the probability that one boy and one girl will be chosen?
A. 1/2
B. 3/8
C. 3/5
D. 1/4
E. 1/8
We can select 1 boy and 1 girl in two ways:
1) select boy from 4th-grade class and girl from 5th grade class
2) select girl from 4th-grade class and boy from 5th grade class
So, P(1 boy
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